power frequency Insulating withstand voltage tester with pd free
I,Summary
Partial discharge withstand voltage test equipment is used for checking the insulation level of all kinds of insulation materials ,insulation structure and electric products. Partial Discharge Equipment is also can be regarded as the partial discharge power source for the power transformers, capacitors, HV vacuum tubes ,CT PT, arrestors and other tested objects. Partial Discharge Equipment is widely adopted by electric manufacturers,electric running departments. Research unities and universities.
II, Configuration
HM-YDQW HV Test Equipment Power Frequency Partial Discharge Testing Equipemtn Composition.
1.Testing transformer
2.Voltage Divider (concurrently as coupling capacitor)
3.Current Limiting Resistors
4.Power Isolation Filter
5.Console
6.Limb voltage regulator ( built-in Console)
III. Parameter
Function Of The Console
The Console is equipped with over-current protection function, upper and lower voltage function, voltage withstand time recording, protection function, emergency button, alarm bell and door linkage.
The Console is equipped with capacitance voltage divider measuring voltmeter (digital
three-and-a-half), transformer primary winding ammeter and voltmeter.
The Console is equipped with upper and lower voltage regulator protection.
Power of Console is single phase power ;Running time: same as Testing Transformer.
Power Frequency Partial Discharge Testing Equipment /Hipot Tester
Main Parameter:
| Rated Capacity |
5-1000kVA |
Impedance Voltage |
10% |
| Input Voltage |
AC 220V/AC 380V |
Output Voltage Waveform |
Power frequency, sine wave |
| Output Voltage |
AC 0-1000kV |
Surface Temperature |
Oil immersed:<55ºC
Gas: <50ºC |
| Partial Discharge |
Under rated voltage≤5PC |
No-load Loss |
0.2%-0.35% |
| Insulation Mode |
Oil, Gas |
Allowed Continuous Operation Time |
1min as per |
Remark:Power Frequency Partial Discharge Testing Equipment can be customied according to user's needs.
Take 150kVA/280kVA for example, one of the components parameter as below
Technical Parameter for Test Transformer
Phase :single phase
Frequency:50Hz
Rated capacity:150kVA
Input voltage:0.4kV
Input current:375A
Output voltage:0~280kV
Output current: 0.53A
Waveform deviation factor:≤3%
Measurement winding voltage ratio:1000:1
Insulation level: low voltage input terminal to ground power frequency voltage withstand level 5kV/1min
Dielectric loss: <0.3%
Noise:≤60dB
Partial discharge: 0-250kV ,the partial discharge is ≤1-3PC; 0-280kV, the partial discharge is ≤3-5pc
Running time: under rated voltage and current,start form environment temperature,can run 30min.
under 2/3 rated voltage and current, continuous running.
Single test transformer impedance : 3%-12%
Waveform deviation factor: <3%
Remark:Inquriy All parameter of the whole test equipment,please contact us.
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